Vise



D. M. sMnH.

VISE.

APPLICATION FILED AUG.28 1919.

1,332,364. v Patented Mar.2,192`0. F757.

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DAVID M. SMITH, OF GARDEN HQE/IE, OREGON, ASSGNOR 0F ONE-HALF TO H. B. DYER, 0F PORTLAND, OEQCST93N.l

VISE.

Application led August 28,

To all w/"Lom t may concern:

Be it known that 1, DAVID M. SMITH, a citizen of the United States, residing at Garden Home, in the county of Vashington and State of Oregon, have invented a new and useful Improvement in Vises, of which the following is a specification, reference being had t0 the accompanying drawings.

lll/ly invention relates to a class of devices for securing material upon which a workman is operating.

The object of my invention is to provide a vise which can be released in a manner to operate the same in shorter time than those of common type, also to permit the jaws to be adjusted to an efficient gripping position with a minimum movement of parts. 1 attain these objects, as well as other advantages, by the construction, combination and arrangement of parts illustrated in the accompanying drawings which form a part hereof.

Figure 1 is a vertical sectional view practically through the center.

Fig. 2 is a bottom plan view.

Fig. 3 is a detail view on the line 3-3 of Fig. 2. l

Like numbers refer to like parts in the views.

A bench table or convenient support s is shown in Fig. 1. To the support 4 a vise frame 5 is rigidly secured by bolts s. The frame 5 has a vertical, integral jaw 5 upon one end forming a joint with one side of the support 4. The lower part of the frame 5 has a downwardly faced, longitudinal worm-rack 6. The frame also has longitudinal guide tracks 7 suspended from its lower part below the wornrraclr. A member 8 is provided, having parallel, longitudinal guide bars 9, arranged and adapted to rest upon and slide along said guides 7. The bars 9 have a vertical, integral jaw 10 at their outer ends and a rectangular frame 11 secured upon and below the bars 9. Within the frame 11 is an operating rod'12. It has upon and near its outer end a sleeve 13 through which it extends in sliding engagement. rlhe sleeve is transversely pivoted in and near the outer end of the frame 11 by pivots 14. Upon the outer end of the rod 12 a forked handle lever 15 is pivoted by a pivot 16. The handle lever 15 has flat sides which may engage the end of the sleeve 13. 1t also has a rounded lower end adapt- Specication of Letters Patent.

Patented Mar. 2, 1920.

wie. serial no. 320,365.

ed to engage the end of the sleeve 13 in the nature of a cam and cause the rod12 to move outwardly. At a convenient distance from the sleeve 13 a collar 1'? is secured upon the rod 12. A Coil spring 13 is placed about the rod 12 between the sleeve 13 and collar 17, the respective ends of the spring engaging the sleeve and collar. |The inner end of the rod 12 has a cone point 19. A block 20 is secured upon the inner end of the frame 11 and has a recess 21 adapted to receive the point 19. A sleeve 22 is rigidly secured upon the rod 12 near its inner end. The sleeve 22 has a worm-thread 23, adapted t0 engage the toothed rack 6.

1t will now be seen that when the handle lever 15 is in the position indicated in Fig. I

1, the inner end of the rod 12 rests in the recess 21 and the wormthread 23 is in mesh with the toothed rack 6. Upon operating the handle the rod 12 rotates and the jaw 10 is moved toward the jaw 5', or away from it, in the manner of a vise of common type. lt will be further seen that when the handle 15 is lowered to the dotted position in Fig. 1, and the position shown in Fig. 2, the cam action of the end of the handle upon the sleeve 13 causes the opposing end of the rod 12 t0 withdraw from the recess 21, and the inner end of the rod may be dropped slightly by a movement of the rod 12 on the sleeve pivots 14C. This disengages the thread 23 from the worm-rack 6, and the frame supporting the lever may be moved quickly back and forth upon the guides to a desired position. The handle is then raised to a vertical position and the lever operated as before fora close adjustment of the jaws. Upon raising the handle thus, the spring 18 actuates a forward movement of the rod 12 until its end engages the recess or socket 21 and the jaw 10 may be adjusted as before described.

1t is contended that a vise of great strength is thus provided and also one which allows operati on to a close adjustment with a. minimum of operative movements.

l claimil vise of the character described, having in combination, a frame securable to a convenient support and provided with a vertical jaw on its end, a downwardly faced worm-rack and longitudinal supporting guides suspended from said frame below the wormracl-1, a member having parallel guide bars adapted to rest upon and slide along .said guides, said bars having a vertical jaw upon their outer ends positioned opposite the above frame jaw, a rectangular frame ll secured to and below said bars, a sleevepivoted within one end of said frame ll,` a rod extending through said sleeve and into the fra-ine, a worm-threaded collar secured uponv and near the inner end of the rod in position to engage the Worin-rack, means 1n the end lof the frame 11 to support the inner end of lever being cam formed in a manner to engage the adjacent sleeve and canse the withdrawal of the rod from its inner support when the lever is moved to a horizontal position, and at the same time to disengage the worm-thread from the worm-rack and allow the outer jaw to be moved without engagement of the worm-thread `with the wormraek, substantially as described.

DAVD M. SMITH. 

